blob: a81467cb1b9ba0d5b7292389bd38b7bf4ac809f7 [file] [log] [blame]
%default { "load":"ldr", "barrier":"@ no-op ", "sqnum":"0" }
%verify "executed"
%verify "null object"
%verify "field already resolved"
%verify "field not yet resolved"
%verify "field cannot be resolved"
* General 32-bit instance field get.
* for: iget, iget-object, iget-boolean, iget-byte, iget-char, iget-short
/* op vA, vB, field@CCCC */
mov r0, rINST, lsr #12 @ r0<- B
ldr r3, [rSELF, #offThread_methodClassDex] @ r3<- DvmDex
FETCH(r1, 1) @ r1<- field ref CCCC
ldr r2, [r3, #offDvmDex_pResFields] @ r2<- pDvmDex->pResFields
GET_VREG(r9, r0) @ r9<- fp[B], the object pointer
ldr r0, [r2, r1, lsl #2] @ r0<- resolved InstField ptr
cmp r0, #0 @ is resolved entry null?
bne .L${opcode}_finish @ no, already resolved
8: ldr r2, [rSELF, #offThread_method] @ r2<- current method
EXPORT_PC() @ resolve() could throw
ldr r0, [r2, #offMethod_clazz] @ r0<- method->clazz
bl dvmResolveInstField @ r0<- resolved InstField ptr
cmp r0, #0
bne .L${opcode}_finish
b common_exceptionThrown
* Currently:
* r0 holds resolved field
* r9 holds object
@bl common_squeak${sqnum}
cmp r9, #0 @ check object for null
ldr r3, [r0, #offInstField_byteOffset] @ r3<- byte offset of field
beq common_errNullObject @ object was null
$load r0, [r9, r3] @ r0<- obj.field (8/16/32 bits)
$barrier @ acquiring load
mov r2, rINST, lsr #8 @ r2<- A+
FETCH_ADVANCE_INST(2) @ advance rPC, load rINST
and r2, r2, #15 @ r2<- A
GET_INST_OPCODE(ip) @ extract opcode from rINST
SET_VREG(r0, r2) @ fp[A]<- r0
GOTO_OPCODE(ip) @ jump to next instruction